PartsTable
Technical Data Sheet
9377K43 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BUMPER is a the manufacturer industrial component. Key specifications include special_features: 5/16 INCH IN, part_name_assigned_by_controlling_agency: BUMPER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-478-1725, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
9377K43
NSN: 5340-01-478-1725
FSC: 5340
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
special_features5/16 INCH IN
part_name_assigned_by_controlling_agencyBUMPER
NSN5340-01-478-1725
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9377K43 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONAGAV
END ITEM IDENTIFICATIONSPECIAL AIRCRAFT & ENGINE TOOL AND SUPPORT EQUIP/PARTS; CLEANER, STEAM, PRESSURE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
4131906Upgraded Successor
successor cross-reference
successor
9377K43Upgraded Successor
successor cross-reference
successor
222-1116Interchangeable
interchangeable cross-reference
interchangeable
7829Interchangeable
interchangeable cross-reference
interchangeable
712010-044Interchangeable
interchangeable cross-reference
interchangeable
E9BMInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9377K43?
9377K43 is a BUMPER.
What parts can replace 9377K43?
There are 7 known substitutes for 9377K43: 4131906, 9377K43, 222-1116 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9377K43?
9377K43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-478-1725. This indicates validated use in U.S. government and defense supply chains.
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